Calculating machine



w. H.-'BROWN.

CALCULATING MACHINE. APPLICATION FILI'ID FEB. I9, I920: 1,426,710. PatentedAugr 22, 1922.

I2 SHEETS-SHEET 1.

I N VEN TOR.

ATTORNEY/.5.

,w. H BRQWN. CALCULATING MACHINE.

APPLICATION FILED FEB. 19. 1920.

Patented Aug. 22, 1922.

.12 SHEETS'S HEET 2.

I INVENTOR. B gmw razz ,7 TTORNE Y8 I W. H. BROWN.

CALCULATING MACHINE.

APPLICATION FILED FEB. 19. I920.

A TTOR/VE 78 W-. H. BROWN CALCULATING MACHINE.

APPLICATION man FEB. 19, 1920.

Patented Aug. 22, 1922. I

I2 SHEETS-SHEET 5.

./ is m .3 kw

INVENTOR.

A TTORNEYS.

W. H. BROWN.

CALCULATING MACHINE.

W. H. BROWN.

CALCULATING MACHINE.

APPLICA'HON FILED FEB. 19, 1920.

Patented Aug. 22, 1922.

I2 SHEETS-SHEET 7- INVEMTOR.

ATTORNEYS W. H. BROWN.

CALCULATING MACHlNE.

APPLICAYIQN FILED FEB. 19, 1920. 1 ,426,7 1 O. Patented Aug. 22, 1922.

12 SHEETS-SHEET a.

ATTORNEYS.

' w. H. BROWN.

CALCULATING MACHINE.

APPLICATION FILED FEB. 19. 1920.

1 A26? 1 Patented Aug. 22, 1922' l2 SHEETS-SHEET 10. 55

A TTORNEYS 1 w'. H. BROWN.

CALCULATING MACHINE.

APPLICATION FlL ED FEB. 19, 1920.

Patented. Aug. 22, 1922 I2 SHEETS-SHEET ll.

ill

/9- W i A F 1 N VEN TOR A TTORNEYS W. H. B ROWN. CALCULATING MACHINE.

, APPLICATION nuzo FEB. 19, 1920. 1,426,710. Pfltentfid'Allg- 22, 1922.

12 SHEETS-SHEET 12'.

ATTORNEYS.

PATENT orncs.

onirsn srA'1l5 WILLIAM H. BROWN, or SYRACUSE, new YORK, nssrenoa To 1:. H.

FRANKLIN MFG.-

COMPANY, OF SYRACUSE, NEXV YORK, A OGEPORATION OF NEW YORK.

CALCULATING MACHINE.

Specification of Letters Patent. Patgnted gkug 22 1922 Applicationfiled. February 19, 1920. Serial No. 359,817.

To all whom it may concern:

Be it known that I, VTILLIAML H. BROWN, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and tate of New York, have invented a certain new and useful Calculating Machine, of which the following is a specification.

This invention relates to calculating machines, and has for its object a particularly simple, eliicient and compact computing mechanism and also an especially simple and compact arrangement of the various mechanisms. The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views. i

Figure 1 is a plan view, parts bemg omitted, of a machine embodyiiw my invention.

Figure 2 is a sectional view taken approximately on the plane of line 2-2, Fig. 1.

Figure 3 is a plan view, partly in section, showing parts omitted from Fig. 1.

Figure 3 is an enlarged fragmentary view of parts ofithe total and clearing mechanism seen in Fig. 3.

Figure l is a longitudinal vertical sectionalview taken on the plane of line 2%, Fig. 3, illustrating the position of the calculating mechanism at the beginning of the computing operation.

Figure 5 is a view similar to Fig. 4, taken on the plane of line 5-5, Fig. 3, showing the clearing and total key and parts operated thereby.

Figure 6 is a View similar to Fig. 4 showing the position of the computers and indicators at the end of a computing operation.

Figure 7 is a fragmentary detail view illustrating the operation of the totaling mechanism.

Figures 8 and 9 are respectively, an enlarged plan view, and side elevation partly broken away, of the carrying-over mechanism.

Figure 10 is a fragmentary plan view of the frame, stop carriage movable transversely thereof, and means for moving the carriage.

sure 11 is sectional view on lines 11--11, Fig. 10.

tionalview on line 12-12, Fig. 3

Figure 12 is an enlarged fragmentary secillustrating a portion of the decimal setting me ChflnlSHL' r1 r igures 13 and 14: are respectively, an eleyation looking to the left in Fig. 12, and a plan view parts being omitted, of parts seen in Fig. 12.

This calculating machine comprises generally, calculating mechanism including a series of computer elements, a series of indi- .cator 'orrecor der elements pairedwith the computers, actuating means for the movable parts of the machine, means for controlling the extent of movement of the indicators by the actuating means, and means for trans ferring the movement of the indicators to the other series.

In the illustrated embodiment of my invention, the movements of the indicators are transferred "to the companion computers, and both indicators and computers are loosely mounted upon a shaft 3 journaled in suitable hearings in the frame i, and are held from lateral movement relatively to the frame, that is, axially of the shaft 3, the computers 1 being wheels which rotate and the indicators 2 being segments which rock with the shaftS. The segments 2 are of greater radius than the wheels as clearly seen in Figs. 41., 5, 6 and 7, and have peripheral numbers'at 5 from O to 9 inclusive on their peripheral edge. These numbers may be type and coact with printing mechanism to be hereinafter described.

The computers 1 have a series of peripheral teeth 6 from O to 9 inclusive and the wheels are of such size that each is provided with three series of teeth from O to 9 inclusive. One tooth 6 of eachseries as the nine tooth is longer than the other teeth of the series for a purpose to be hereinafter de scribed.

The actuating means coacts with the indicators, and the movements thereof are transferred to the computers, and this ac tuating me ns includes a member common to all of the indicators and having the same movement or extent of movement during each operation, and devices associated with each indicator 2 for detachably engaging or latching with. the actuator so that when the particular indicator is stopped in its movement, as will be hereinafter set forth, the actuator can continue in its actuating movement and actuate other indicators which have not been stopped.

7 is the actuator which is here shown as a yoke or bail mounted on the shaft 3, which a rock shaft, to rock therewith, said. yoke beingarranged astride the series t COHIPUlJGlS and indicators 2 so that its intermediate part 8 sweeps over the peripheral edges of the indicators.

The means for detachably connecting the actuator 7 to the indicators 2 as here shown, includes a friction pawl 9 pivoted at 10 to the margin of each indicator 2 and. having an inclined or friction face 11 impositively or trictionally latching with. a corresponding face on a rib 12 provided on the intermediate part 8 of the yoke 7. Each pawl is pressed into its operative position by a spring 13.

The means for controlling the extent of movement of the indicators 2 comprises a carriage 1?, Figs. 1, 3, 4:, 5, 6 and 10 movable along guides 18, 19 extending trans versely of the frame l, the carriage being normally arranged at one side, the right Side looking toward the back of the machine. ot' the series of computers andv indicators, and shiftable laterally step by step under the computers and the indicators and a plurality of series of steps 20 supported by the carriage and corresponding; in numher to the number of indicators, there being one series "of stops for each indicator. The carriage as shown is formed with an areshaped upper face, and the stops are shown as pins 20 movable radially with respect to the axis of the shaft 3 through the upper face of the carriage into position to be engaged by a shoulder 21 projecting radially from each indicator, these pins limiting the indicators in numerical positions from O to S inclusive. Thepins may be actuated in any suitable manner and, as here shown, they are actuated by a rock arm 22 pressing on the lower ends thereof, these rock arms being mounted upon rock shafts 23 extending transversely of the frame heneath the path of the carriage and each hav ing an arm 24: thereon which is connected by a rod 25 to an angle lever 26 mounted on a shaft 27 near the front of the machine, one arm of the an gle lever being acted upon by one of the numeral keys 28. The indicators when moved to the limit of their movement and 01": the actuator T, carry the numeral E) to the printing line. They are stopped in this position by a rod 28 extending transversely of the frame elabove the computers.

There are ten numeral ke s representing values "from 0 to 9 inclusive as seen in Fig. 1 and upon the operation of any one of these keys the corresponding numerical stop 20 of the series alined with the rock arm 22 is moved upwardly above the face of the carriage. The key and stop mechanisms :i'orm no part of this invention. The nine key merely works the csc-apement so that the ii'idieater in line with the series in which no stop 20 is set, moves to the limit of its movement against the stop 28.

The stop carriage 17 is normally arranged at one side, as the right side, ol? the series of computers and indicators 1, 2, as seen in. Figs. 1 and. 3, and is shiiftable step by step, to the left to bring the series of pins or stops 20 one by one under the indicators 2 and the of stops one by one over the series of rock arms by means oi? which they are elevated. The carriage is shifted to the left along its guii'les 18, 1.9 by any suit able means as a rock shaft 25.), l ig s. 2. ll) and 11 journaied in suitable bearings carried at the right side of the frame l and having! a rock arm 3 at one end. which is connected by a link 3 to the carriage, and a spring 32 coiled about said shaft and anchored at one end to the frame at 32-" and at its other end to the shaft or to a collar fixed to the shaft. This collar has a rock arm thereon which is arranged. to be engaged by the actuating; means for the purpose of rocking the shaft and tensioningthesprina' and also moving the carriage to the right at the end oi each computing operation after it has been :ted step by step to the left. A

The step by step movement to the left oil: the carriage is controlled by escapement pawls 36, Fi 3 which coact with a rack on the carriage 1T The pawls are mount ed on vertical rock shaft 38 which is connected by a link 09 to a universal bar 39" arranged to be actuated. by one of the numeral keys. The escapement mechanism forms no part oi? this invention and any well known form of escapement may be used.

The indicators 2 are held from unintentional displacement by a stop lO, Figs. 41-, 5, (3 and 7 movable with the carriage 1'7 and projecting to the left therefrom under the indicators with the exception 01'' the decimal indicators, and here shown. as a rod having an arm at one end pivoted at 1-1 to the carriage 17, the rod being arranged in the path of the radial shoulders 21 of the indicators. lVhen the indicators are in their starting position, the rod is pressed about the pivot ll to its normal position by a spring l2, F 1g. at.

l l. O

catorat the right disregarding for the time being the decimal indicators. During successive movements, additional rows of stops having one pin 20 set therein or none in case the nine key is pressed, move step by step to the left under the indicators 2 and n alinement with the indicators or the radial shoulders2l thereof and the rod 410- moves laterally out from under the indicators and releases the indicators 2 successively. l i

The means for transferring the movement of the indicators 2 to the 'computersl as here illustrated, comprises a pawl 43 best seen in Figs. d to 7 inclusive, pivoted at 4d to eachindicator or register 2 on the margin thereof beyond the periphery of the com panion computer and in line with the pe ripheral teeth thereof, the end'of the pawl being arranged to coact with such peripheral teeth of the companion computer, the pawl being pressed into engagement withsuch teeth by the spring 13 acting on the tail thereof. This spring is also commonto the pawl 9 whichconnects the indicator to the actuator 7. During'the move ment of any indicator, the corresponding computer is correspondingly actuated by reason of the pawl 43 engaging the peripheral teeth 6 of the companion computer 1.

The indicators 2 are returned to their starting position by the intermediate part of the yoke 7 engaging the radially extending shoulders 21 ofthe indicators, as the shaft 3 on which the yoke is mounted, is

rocked backwardly to its starting position.

The advance movement of the indicators carries the type of the-numbers to be set in the computers to the printing hne where,

during the operation of theshaft 3, a platen 46 carried bya pair of rock arms l7 which in turn are mounted upon a sh aft iS extencL ing transversely of the frame at the rear end of the indicator, is moved toward the type of the indicators'at the printing line, and presses the paper 49 on said platen against a ribbon d9 overlying the type at v the printing line.

The platen may be fed to advance the paper in any suitable manner, and as here shown it is formed with ratchet teeth 50 coacting with the pawl 51 mounted on the frame 4, the pawl latchinto engagement withthe ratchet teeth during the forward movement of the platen and moving the platen about its axis during the rearward movement thereof, The

ribbon and the printing mechanism form no part of this invent on and any sultable printing mechanism may be employed.

, The steps 20, which have been elevated, are depressed back in the carriage, after the carriage has been returned to its starting position, at the right of theseries of indicators 2 and computers 1, and as here shown, they are depressed. by means of a member 52, Figures 1, 3, at, 5, (3 and 7, extending to the right from the yoke '7 and sweepin over the face of thecarriage 17 i The shaft 3 is actuated by. means, here shown as a hand lever 53, Figs. 1, 2 and '10 mounted on a rock shaft 5 l-journaled in the frame 4 on the right side thereof, the handle being connected by means of a rock arm 55 on the shaft '54. and a link 55 to a rock arm 56 mountedon a stud or shaft 57 journaled in the frame on the right side thereof and onwhich is mounted a segment 58 which meshes with'a gear 59 mounted'on the shaft 8 and connected thereto by a lost motion connection for a purpose to be describedin connection with the decimal mechanism.

The shaft 29 which serves to return the carrier .17 to the right to its starting position, is also actuated by this lever or by an arm/6O extending from the hub of the arm 55 thereof,=which arm moves into engagement with the rock arm 85 on the collar 8% on said shaft29;v As on account of decimal mechanism to be hereinafter de-' scribed, the carriage 17is pulled to the right twov steps beyond the teeth of the rack??? with which the escapement pawls 86 coact, means is provided for preventing movement of the carriage to the left by the spring 32, this means being here illustrated as a grav ity pawl or detent 61, Figs. 1 and 2 loosely mounted on the shaft 54 and in ving into a notch 62 in the collar 34-. The pawl is lifted out of the notch 62 as the lever 53 approaches its forward or normal. position by means of ashoulder 68 provided on the hub of, the arms 55 and ,60 and movable into engagement with the shoulder 6% on the tail on the pawl or detent 61. i The notch 62is brought into alinement with the pawl or detent 61 after the shaft 54 has been rocked to tension the spring by the arm 60. i i

In operation, as thusfar described, assuming that'the number 825 (eliminating for the present, the idea of decimals), is to be added to a number accumulated in the computers, the 8, 2 and 5' keys are depressed in order, thus elevating the 8, 2 and 5 steps 20 of the first three rows of stops from the left on the carriage 1.7 and the carriage -17 feeds stepby step to the left three steps. The

handle 53 isthen pulled forwardly causing the shaft 54tand parts thereon to rock, thus actuating the roclrshaft 3 on which the computcrs 1 and indicators 2 are mounted. This rocking of the shaft causes the yoke 7 to move forwardly carrying" three of the indicaters 2 therewith which. indicators have been released by reason of the moving of the rod l out from under the radial. shoulders 21]. thereon. These three indicators are actuated until they are limited respectively by the stops 8, 2 and 5 in alinement therewith and during; their movement into engagmnent with the stops the pawls 4:3 engage teeth of the compai'lion computers and correspondingly actuate said computers. Also, during the forward movement of the handle the platen i6 is moved to take a record on the paper through the link connected to the hub on the shaft 5 t, and to an arm fixed to the shaft 418 on which armed? supporting said platen are mounted.

As the handle approaches the end of its throw forwardly, the arm 60 engages the arm of the collar on the shaft 29 and rocks said shaft to tension the spring and also to return the carriage 17 to the right to its starting position. During the rearward throw of the handle lever 53, the yoke '7 returns the indicators to their startingposition. in engagement with the rod 410 and also sweeps the member 52 across the face of the carriage 17, which is now in its starting position, and depresses the stops 20.

The total mechanism, in the illustrated. form of my invention. acts to hold the computers from movement and to limit the movement of the indicators insuch positions that the numbers thereof at the printing line correspond to the total accumulated in the computers 1. The long teeth 6 of the computers are the stops for the indicators during this operation. The computers are locked from movement by a member 66, Figs. 8, 4:, 5, 6 and 7. common to all the computers and engaging the teeth thereof and being normally out of engagement and movable into engagement therewith by connection between the total lacy 67 and said lock (36. These connections, as illustrated, include a rock shaft (58 extending transversely of the frame in front of and below the computers, see Figs. and 7, an angle lever 69 011 said shaft and having one arm 70 thereof connected at 71 to the shank of the total key 67 and having its other arm connected to a linl: 7 having shoulders 73, 74; thereon arranged to engage with lost motion front and rear sides or a tail or arm 75 on the lock 66. This link 72 also has means as a depending arm 76 for coacting with the stop 40 to depress the same against the action of its spring and out of the way of all the shoulders 21. of the indicators and with means as a downward projection '77 at its front end, Fig. 7 which coacts with a lever 78 mounted on a shaft 79, supported by the yoke 7 and having a cam 80 thereon arranged to engage the under side of the pawls 43 of the indicators and move said pawls so that they clear the short teeth of the computers and engage only the long teeth 6;

Hence, upon. operation. of the total he t lock 66 is moved into engagement with 1 teeth of the computers and the pawls 43 the indicators shifted to engage only 1 long; teeth 6" of the rem nders. Therefore upon the operation of the handle 52; and. the shaft 3 the yoke 7 moves the ind icators until their pawls 4C3 engage the long; teeth -13" of. the computers, so that further movement of:

is prevented. and h once the nuhe he on the the indicators merals thereof are brought to the printing line corresponding to the numbers acculturlated in the computers.

iVhen the 2631'!) is presc in number to he added, the zero key is depressed and. as no movement of the C41 respoi'idinp computer is necessary, althou l. a more cut or. the corresoonding indict-to is necessary to bring the Zero to the printing line, lost ILO tion is provided between the indicator and its computer by arranging the pawls 4t so that they stop over the top of the teeth of the computers as seen in Fig. t and upon more mentofthc correspondin indicator into (n- ,c agemcnt with the zero or first stop 20 of the series of stops, this pawl 43 merely moves from one tooth of the computer to another and does not transmit any movement to the computer. Also when the nine key is depressed the indicators simply move to the limit of their movement until. the advanced faces 8t of the indicators engage a fixed shoulder as the rod 28 extending transversely of the frame. The nine key operates no stop but merely works the escapeuiicnt.

The total key 67 is operated against the action of a return spring 83, and after the handle 5?. has been operated. to take the total,

me key 67' is released and the spring in l ing; the total hey, moves the link 7210 cause the shoulder 7 to engage the front side o f the tail 75 of the detent tio and more it out of engagement with the computers, and also to cause the are. 76 to more out of enga 'ement with. the stop ll) so that it can again more into position where it is engaged hr the radial. shoulders 2 1 of the indicators 2. i

in order to hold from movement when taking the total, the indicators coacting with the computers in which no numher is set, that is, the computers at the extreme left, means controlled by the computers is provided for locking such iiulicators after the rod 4L0 has been shifted by the operation of the total key out of its operative position.

As here illustrated, this means consists of detents 8 one for each indi :ator, said detents being: operated by the total key and controlled by trailing pawls 85. one for each computer, mounted on the shaft 86 on which the detent 66 is for convenience also mounted. When a computer is actuated the comlll) panion trailing pawl is also moved out of its normal position. The detents 841 are. here shown as loosely mounted upon a shaft87 extending transversely of the frame and as extending upwardly therefrom, there being one detent for each trailing pawl 85. Each detent 842 is connected to the total key 67 by suitable means as an arm 88 mounted on shaft 89 extending transversely of the frame and coasting at 90 with the total key, and a plurality of arms 88 one for each detent, each having a fork coact-ing with the arm 01 on each detent. Que side of the fork is made up or a spring 92, so that it may yield shown in Fig. 7. Each detent 84; is provided with a hook 953 at its upper end for hooking over the tail 93 or the companion pawl 85 when the total key is operated, and the pawl is in its normal or starting position, and in so doing moves the shoulder 9 1- thereon under a shoulder 95 on the corresponding indicator. Hence, locking such indicator from movement.

In the event the computer corresponding its to an indicator 2 has been moved from its starting position the trailing pawl 85 is shifted out of its normal position into that shown in Fig. 7 and thus shifts a shield 96 on the tail 93 thereof into the path of the hook 023 of the detent 84 as seen in Fig. 7 and thus prevents the locking of the corresponding indicator during the taking of the total, the spring 92 or any arm 883thatis, coacting with a detent ea in the position shown in Fig. '7, yielding during this operation. The trailing pawls 85 are mounted on the shaft 86 by a lost motion connection here shown, Fig. '4', as a pin 86 working in a wide slot 85 in the pawls, thus the pawls can be moved from their normal position, Fig 1,

7 into their inoperative position, Fig. 7, with out turning the shaft 86 on which the computer lock (36 is fixed, but can be returned to their normal position by the rocking of the shaft. The shaft is rocked by the clearingniechanism be described. The trailing pawls 85 constitute controls (the de tents 8st)- for locking from movementthe indicators which coact with unused computers. The carrying over mechanism between the computers may be ot any suitable form, size and construction and it is here shown as member common to all the computers and carrying over parts carried by said member and coacting respectively with the computers, and means operated by any one of said parts, for connecting said member to the -;'-.ctua"'ng mechanism of the machine.

101 designates the carrying-over member common to all the computers, this member being here shown as a yokelooselymounted on the shaft 2-3. 102 designates the parts mounted on the member 101 and individual to the computers respectively. 103 are trippers as trailing pawl; coactingrespectively- 104 extending transversely of the frame above the computers. 105 are spring pressed latches coaeting with the pawls 102 to normally hold the same out of operative position and 106 and 107 are. springs pressing respectively on the latches 105 and the pawls 102. I

. In operation, as one of the long teeth 6 of a computer passes under the tripper 103 it engages the under face 108 thereof and lifts said tripper far enough to trip the latch 105 which holds the pawl 102 coacting with the computer 1 of next higher denomination, and this pawl 102 is then moved by its spring 107 into engagement with the teeth of the computer of next higher denomination so that when the yoke or member 101is rocked, this pawl 102 so. released will also engage the wheel of higher denomination. A long tooth 6 engages the detent 103 when 9 is accumulated in the wheel; When the computer of higher denomination to which a number is being carried has nine set therein, the deep notch 109 of suchcomputer of higher denomination receives the pawl 102 permitting sufiieient movement of said pawl 102 to allow it to engage a laterally extending shoulder 110 on the tripper 103 controlling the computer of the second higher denomination, and lifts it far enough to trip the latch 105 holding the pawl of second higher denomination so that the carrying over pawl 102 of. the wheel of second higherdenomination is permitted to engage its; companion computer and actuate the same during rocking of the yoke 101. As the principle involved in the operation of carrying'over parts 102, 103, 105 andin the deep notch 109 is well known to those skilled in the art and as the carrying over mechanism, per se forms no part of this invention, it is thought that "further description is unnecessary.

The member 101 is normally disconnected from its actuating means to-wit, the shaft 3 or the yoke 7 and as before stated, it is connectable theretoor controlled in its connection thereto by anyone of the members 102.

As. seen in Fig. 9 it isconnected thereto by a member as a lever 111 mounted on a stud 112 supported by one of the sidearms of the member or yoke 10]., the lever having one arm thereof provided with a pro jection 113 arranged to be engaged by a earn 114; on the contiguous arm ot'the yoke? and having its end 115 arranged in the path of a peripheral shoulder 116 on the hub of the adjacent arm of the yoke 7 The lever 111 is also formed with a forwardly projecting arm. 117 arranged to be en -member 101 under the arms of the pawls 102 which coact with the latches 105. This rod 120 is supported at its other end by a link mounted on the rod or shaft 119 and lined. thereto. The pawls 102 are loosely mounted. on this shaft.

hen any of the pawls 102 are released as just described, these pawls pressing on the rod 120, rocks the lever 118 or the rear end thereof upwardly so that it presses the arm 117 of the lever 111 upwardly carryin" the end 115 downwardly into the path 01 the shoulder 116.

It does this as the latches 102 are released only when the computers 1 are in motion and when they are in motion the cam 114; has been moved away from the projection 113 01 the lever 11 which projection holes the lever 111 with its end 115 out of the path of the shoulder 116 as seen in Fig. 9.

Hence, as the yoke 7 during this actuation ofthe indicators 2 approaches the end of its rearward movement, the shoulder 116 engages the lever 115 and causes the lever to cause the yokes 7 and 101 to move as a unit so that the pawl 102 which has been released will advance the companion com puter 1. As the yoke returns to its start ing position the cam 114lon the yoke engages the projection 113 on the lever 111 and the lever 111 and also the carrying over parts in their normal or inoperative position.

The yoke is locked from movement in order to prevent carrying over operation during the total taking and clearing operations by suitable means as a lock 07, Figs. 3 and 9, mounted on a vertical rock shaft- 98 between its ends, said lock being arranged to swing under one arm of the yoke 101 and an arm 98 on the lower end of said shaft 98 connected by a link 90 to a rock arm 100 on the shaft 68, which shaft is operated by both the total and. the clearing keys. The rod 120 not only resets or restores the pawls 102, but also normally holds the pawls 102 slightly beyond the position in which they are held by their individual latches 105, so that the tails 102 of said pawls 102 are in the path of the long teeth 6 of the computer. W hen the actuator or yoke 7 moves and shifts the cam 114: away from the projection 113 of the lever 111, the parts 102 are moved by their springs 107 until the shoulders 102" thereon take up the lost motion between them at 105 and the latches 105. This operation also lifts the tails 102 of thepawls 102 out of the path of the long teeth 6 of the computers.

The clearing mechanism comprises a key 122 which is connected to the shaft 08 to rock the same. The total key 67 and the clearing key are connected to the shaft in substantially'the same way. As here illus trated the shaft 68 is provided with a rock rm 123 hereon, Fig. 3, and the clearing key 122 coactjs with an arm 120 extending 11' m a collar 127 on said shalit and. having laterally extmiding shoulder 128 arranged to engage or pick-up the arms 12?,- aud rock the shaft 68 when the clearing; key is depressed, while the arm coactinp with the total key is mounted on a similar col- 1211' 129 loose on the shalt 08 and yurovided with a laterally extending shoulder 130 arranged. to also engage or pick up lhe arm 12311116! hence rock the shaft when the total. key is operated.

The arm (30 which actuates the link 72 of the total mechanism is prm'ided on the collar 16!). The collar 127 is provided with an arm 131 similar to the arm (50 and s id arm 131 is connected to a link 1 52. l*i;r;-;. 3 and 5 extending; over the indicator stop or bail 10 and having;' a depending arm 133 similar to the arm 76 oi the link of the total mechanism, this arm 133 serrirgg to depress the stop 40 and release the indicators when the clearing key is de'gn'cssed. Th link 132 carries a spring pressed pawl 13 larranged to engage and push against an arm on the shaft during the return movement oi the link 11 2. when the clearing key has been released and returned by its spring 122. The rocking: movement of the shaft 80 returns the trailing pawl to the normal position by reason of the key 80 and slot The pawl 1331 and. arm 1255 are arranged so that the nose of the pawl can ratchet or slip under the end of the arm 135 during the end of the return movement of the link 32 and alter the trailing pawls 85 are in their normal engagement with the computers 1.

To repeat any number in the indicators, that is, to perform a multiplying operation, means provided for discern necting the carriage 17 from the returning mechanism as the handle and as here shown this is accomplished by moving the arm 35 out of the path of the arm 00 actuatcd by the lever 53.

As seen in Fig. 11, this arm 35 is shit'table into and out of the path of the arm (30 by means of a key 130 which eoacts with the angle lever 13:, one arm 01? which engages the key and the other arm 01 which engages the arm By pressing downwardly on the key 130 the arm 35 is pulled to the left, 11, out of the path 01? the arm 00 and hence during the operation of the hand lerer 53, the carriage 17 is not returned to its position to the right, and hence the stops 20 which have been set are not reset by the member or cam 52 as this member sweeps over the face of the carriage, only when the carriage is in its positon at the extreme right. Therefore, by holding out of the key 136 number can be repeated as many times as desired. The key 136 is returned to its normal position by a spring 138 encircling the shank of the key andpressing at its upper end against a shoulder or pin 189 on the shank and at its lower end on one of the bearings torthe key shank.

The first two computers 1 and indicators 2 at the right of the series are decimal elements and always compute, indicate or record decimal fractions, and the decimal computers and indicators and 2 normally overhang the first two rows of stops at the left of the carriage 17 and are not normally held from movement by the stop or bail 40 which holds the remainder of the computers and indicators from movement by engaging radially extending shouldersQl thereon but are held by a stop means to be presently described.

As the decimal computers and indicators overhang two series of stops and as the carriage 17 feeds laterally step by step during the setting of the stops, it is necessary, preliminary to each computing operation in which there is a decimalfraction,to return the carriage two steps to'the right, and this is accomplished by connecting the carriage to the actuating mechanism operated by the handle This connecting mechanism, best seen in Figs. 1, 3, 12, 13 and 1 1, comprises a clutch as a pinf'ldO shiftable into engagement with a rack 14-11 on the carriage 17 and being normally out connection with the rack and shiitable into engagement therewith by a decimal key, as will be hereinafterdescribed. The rack 141 is provided with a suiiicient number ofvteethso that the pin and clutch 140 will take thereintoin any lateral position of the carriage 17, that is, whether the carriage 17 is in. position occupied when the decimal fraction only is being computec, or is in its position occupied, whole number of seven figures or less, and a decimal fraction is being computed, a whole number containing seven figures being the capacity of the machine illu" trated.

This clutch member or pin140 is carried bya power transmitting element actuated by some part which in turn is actuated by the handle lever ting part consists of a lever 14-2 having a hearing between its ends mounted on ashaft or stud 14.3 tending lengthwise thereof, the clutch" pin il-i' bearing 14% below the she-it 1 53 and the upper arm of theslevcr 14:32 having means as a roller 145 coacting withthe cam 146 mount ed on the shaft 3 on which the computers are mounted, this cam having a lift portion which tends to press theupper end of the le *er to thedeit and hence the lower end thereof. which carries a clutchsection, to the right and therefore move the carriage This power transmit,

carried by the frame and ex being slidably mounted in guideor 17to the. right when it is connected to the lever 17 by theclutch pin 140. I

This cam 146 is mounted on the shaft 3 by a lost motion connection here shown as a transverse key or pin 14'? extending through the shaft 3 and having its end portions working between jaws 1&8 in the hub of the cam 1 16. The cam is connectedto' the gear 59 by keys or pins 149. The object of this lost motion is to permit the gear 59 to actuate the cam 1 16 and pull the carriagel? two steps to the right before the jaws 148 of: the hub of the cam 1 16 or the hub of the gear 59pick up thepin 1 17 and actuate the shaft 3, and hence the yoke 7 which drives the indicators' Inother words, this lost motion is for permitting the carriage 17 to be first placed in position before the computing operation takes place.

150 is a decimal key for operating the clutch pin 140, the motion of this key 150 being transferred to the pin 140 through an angle lever 151, one .arm of whichis connected to one end of a 1ink152, the other end'of which link is connected to one arm of a lever 153 pivoted at 15% to the frame 4. The other arm. of the lever 153 presses against the head 155 of the clutch pin 140. Obviously, as the key 150 is depressed the link 152 will be pulled forwardly and hence the clutch pin 140 ,pressedrearwardly so thatit engages the rack 1 11 01 the carriage 17.

The clutch pin 1 10 and decimal key 150 are restored to their normal positions by means oi a shifting, lever 156, Fig. 12, pivoted to, the motion transmitting lever 1 12 at 157 and one arm thereof engaging the rear face of the head 155 of the clutch pin 140 and the. other arm being arrangedin the path of a projection or shoulder 159 on the peripheryof the cam 1 16 andremote from the left of said cam 131. stated, the two decimal computers and indicators 1 2 are not held by the bail or stop i0 but they are normally held 715F011}, movement by a shift'able stop 160, see.

Figures 3 and 12, exte'nding transversely 0-5 the machine from the right side thereof extending over the upper edges of the decimal indicators 2*, so that saidindicators can be moved. about theshal't. However, when the decimal key 150 is operated to connect the carriage 17 to the power transmitting lever 14:2, said carr age durlng its feeding movement to the left when the numeral keys-tor the decimal fractions are depressed, shifts this look 160 to the right and out of the path of the decimal computers and indicatorsl", 2 This movement is accomplished by means of an arm 161 extending upwardly from the hub of the lever 1412 and engaging a depending arm 162 on the stop 160. This st0p160 slides in a bearing 163 As before laavnrig a urcd to the side of the fr-inn;

I l i "1 i .1 scaling; 168. unted on the 21.11

Slit

R1111 plot. 1"

ment.

The stop 160 is also operable by the total k y 67 and the clearing; key 122 through a shifting lever 166 mounted on the frame and pivoted at 167 be'\veen its enr'ls, one arm thereof coacting with the head 168 at the outer end of the stop 160 and me other arm thereof being connected f a liin: 165) to an arm 170 on a reel; Slluifi 68, 8,

5, and 7. its either one of t ese lzcys erated one of the rock arms or the and will engage the roclr arm .1253 on the sh: 68 and cause the shaft 68 be rocked and the shiftinglever 166 to pull the stop 160 to the ri ht out of the path of the decimal computers and indicators 1, 2 so that these dez-in'ial elements can be actuated. to take a total or clear the machine.

In operation, the numeral keys are do pressed in the order of the numbers in t 1. figures to be written, and during the pressing" of any one lrey the escapement pawls 36 are operated and also one of the ste s 20 of the row of stops in alinrment with the levers 22 is elevated and the carriage 17 fed step by step to the right under the computers and indicators.

The haiiidle 53 is then first pulled forwardly and then pushed rearwardly, the forward movement first ausinp; the carriage 15 to be pulled two steps to the right in case a decimal fraction is set and then the yoke 7 to sweep over the face of the carriage 17 carrying; the indicators in which numbers have been set therewith until the indicators are limited by the stops 20, pre viously set by the numeral keys, the indi caters being released from this yolce (or indicator) 7 owing); to the friction paavl 13 or similar mechanism such. as shown in Figure 4;.

During such movement of the indicators by the yoke 7 the motion is transferred to the computers 1 through the pawls During the end of the forward movement of the handle 53, the arm 61 engages the arm and returns the carriage 17 to the right to its starting position. During the rearward movement of the handle 53 the yoke 7 moves in the reverse direction and restores the indicators in their starting position and the wiper 52 sweeps over the face of the carriage 17 and depresses the stops therein.

its the lever 53 reaches its extreme rearward movement it releases the latch which holds the carrage two steps to the right beyond its normal starting): position so that the carriage is fed by the $P7.'lil:" two steps to the left where two rows of ops are under the decimal indicators 2. in this position, the carriage is stopped by the cscapcment and is thereafter coutmlled h the escapement. lVhen the total is to be taken the total key 67 is depressed, th: s leasing the indicators and locking the computers from movement and. the handle 5?; again actuated.

To clear the machine, the clearing ke is depressed, thus releasing all the indicato and the computers so that when the ha KllO is pressed all the indicators can he mo e to the full extent of their movement and the entire movement thereof transferred to the computers which are carried aroundv un til the long teeth 6 come against the end of the carrying-over pawls 102.

For keyboard mechanism, carrying over and clearing, and decimal, generally similar in principle to those shown herein, but differently arranged with respect to the computing mechanism, reference is made to my patents as follows Patent No. 1,088,671, issued Feb. 2 1-, 1914;, recording machine; Patent No. 1,122,191, issued Dec. 22, 1914;, recording and calculating; machine; Patent No. 1,160,372, issued Nov. 16, 1915, decimal mechanism for calculatinp; machines; Patent No. 1,167,332, issued Jan. 41, 1916, calculating machine; Pitout No. 1, 12,320, issued Jan. 10, 1917, calculating machine; Patent No. 1,214,886, issued Feb. 6, 1917, carrying over and clean ingmechanism for calculating machines; Patent No. 1,285,014, issued Nov. 19, 191.8, carriage operating mechanism for recording machines.

What I claim is:

1. In a calculating machine, the combination of a shaft, a series of computers, a series of indicators mounted. on the shaft and movable about the same, the computers being arranged alternately with the indicators and being paired therewith, means for transferring the movement of the indicators in one direction to the computers, means for actuating; the indicators, and means for controlling the extent of movement of the indicators, substantially as and for the purpose specified.

2. In a calculating machine, the combination of a shaft, a series of computers rotatably mounted on the shaft, and a series of indicators mounted to rock about said shaft, and being paired with the computers, means for rocking the indicators about the shaft and controlling the extent of movement thereof, and means for transferring the movement of the indicator elements in one 

